Digital BW, The Print

Hi Everyone,

I'm new to the site.  I am deciding which computer to get for my digital darkroom.  I am specifically interested in the question for doing black and white digital work.  I expect this machine to last for some years.  I don't typically replace machines frequently.  Is there any software that helps black and white printing that is specific to Windows or the Mac? Or is software available to pretty much both?  I've noticed some comments about drivers for scanners and printers not working well with the Mac OS but not sure this typical.

I don't want to start a war of words between Mac and Windows users.  I'm familiar with all the arguments for both.  I'm just want to consider it from a digital black and white point of view only.  I think it is a close call as there are users of both that seem to do pretty well.  

Thanks,
Mike